The quadratic formula is x = (−b ± √(b²−4ac)) / 2a. For x²+2x−8=0, the solutions are: A −4 and 2 B 2 and −4 C 4 and −2 D 1 and −8 ✓ Correct Answer: Option B a=1,b=2,c=−8. x=(−2±√(4+32))/2=(−2±6)/2. x=2 or x=−4. Practice CLEP Exam Prep Quizzes → Browse All Questions Study Flashcards